From Stansted Airport train to Tottenham Hale Underground Station, Tube to London Euston, then train to Watford Junction. 1hrs 07min £36. From Stansted Airport, Coach Station line 737 bus to Hemel Hempstead, Combe Street (Unknown) then bus to Watford, Palace Theatre (Unknown). 2hrs 30min £14. From Stansted Airport, Coach Station (Stansted Aprt) bus to Harlow Town Centre, Bus Station (Harlow Bus Stn) then line 724 bus to Watford Junction Railway Station. 2hrs 58min £14. From London Stansted drive to Watford. 58min £9.